Grouvellinus carus Hinton, 1941

Bian, Dongju & Sun, Haibin, 2016, A key to Grouvellinus Champion, 1923 from mainland China with descriptions of two new species (Coleoptera, Elmidae), ZooKeys 623, pp. 89-104 : 100

Taxon classification Animalia Coleoptera Elmidae

Grouvellinus carus Hinton, 1941 Figures 21-22

Grouvellinus carus Hinton, 1941: 71. TL: China, Fujian.

Distribution.

China: Fujian.

Remarks.

This species was described by Hinton in 1941, and the type specimens were deposited in Natural History Museum, London. Dr. Maxwell V. L. Barclay (London) provided the habitus photos of the holotype which were taken by Keita Matsumoto (London). According to the photos and the original description, the following differences between the Grouvellinus carus and the two new species are noted: Grouvellinus carus has an oval impression medially on pronotum, surface of head with a few granules, metasternum without two small pits on median suture, and all of ventrites II to V densely pubescent and sparsely granulate, while the two new species are without impressions medially on pronotum, head smooth and shining, without granules, metasternum with two small pits on median suture, and middle regions of ventrites I to IV smooth and shining, without granules, not densely pubescent.